public function injectObjectManager(ObjectManagerInterface $objectManager)
{
$this->objectManager = $objectManager;
/** @var CacheManager $cacheManager */
$cacheManager = $this->objectManager->get(CacheManager::class);
$this->methodPermissionCache = $cacheManager->getCache('Flow_Security_Authorization_Privilege_Method');
$this->runtimeExpressionEvaluator = $this->objectManager->get(RuntimeExpressionEvaluator::class);
}